Seiko Cal. 7131 - 398

This Spring Drive model from 1980 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-f42f692bac66]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1980

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